a Device Tree (DT) is a description of the hardware in a system
source: https://www.raspberrypi.org/documentation/configuration/device-tree.md
Questions tagged [device-tree]
71 questions
2
votes
1 answer
How to configure the device tree for the MAX30102?
I am trying to get the MAX30102 heart sensor to run and have recompiled the kernel with the necessary module. I have loaded the follwing modules to be sure
i2c_dev
i2c-bmc2708
i2c-bmc2835
industrialio
max30102
I can verify this with lsmod
Module …
neolith
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2
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0 answers
Applying dwc2.dtbo to bcm2711-rpi-4-b.dtb at build time triggering FDT_ERR_NOTFOUND
I'm trying to build a NixOS image for my Raspberry Pi 4b with the dwc2 device tree overlay applied.
Per advice from the #nixos-aarch64 IRC channel, doing this the Nix Way calls for configuring hardware.deviceTree, and letting the build process apply…
Charles Duffy
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2
votes
1 answer
Why DMA uses bus address rather than physical address?
Why DMA uses bus address rather than physical address?
And do we provide bus address or physical address in the device tree?
Where do we get to know these addresses that needs to be provided to the device tree?
kurramkurram D
- 143
- 3
1
vote
2 answers
How to detect a device tree overlay at run time?
What is the best way to check at run time if a device tree overlay is loaded?
I've found info about checking individual GPIO pin status, and info about how to load the overlay (via config.txt), but I'm not finding info about how to check if the…
djulien
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